χ² test of independence

About this app

A contingency table of two categorical variables as a mosaic: cells colored by standardized residual, observed vs. expected, χ² statistic, degrees of freedom and p-value live. Are two variables independent — e.g. department × promotion?

Subject: Statistics

More from Statistics

• Anscombe's quartet
• Bias-variance / overfitting
• Law of large numbers
• Hypothesis test & p-value
• Confidence interval
• Measures of location & spread
• Measures of location & spread 2.0
• Logistic regression

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